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212219 (2005 HC)
Classification: Main-belt Asteroid          SPK-ID: 2212219
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08511374262615214 6.6537e-08  
a 2.464848439760741 1.6537e-08 au
q 2.255055964046472 1.6676e-07 au
i 7.39304921585359 5.2699e-06 deg
node 109.0099418668494 3.5967e-05 deg
peri 36.74006988896229 4.3783e-05 deg
M 25.02131441644202 2.2193e-05 deg
tp 2458902.259316192114
(2020-Feb-22.75931619)
8.7371e-05 TDB
period 1413.460763180324
3.87
1.4224e-05
3.894e-08
d
yr
n .2546940172502493 2.5631e-09 deg/d
Q 2.674640915475009 1.7944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      444  
   data-arc span      6969 days (19.08 yr)  
   first obs. used      2001-03-30  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5263  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:43:49  

Additional Information
 Earth MOID = 1.27253 au 
 Jupiter MOID = 2.34113 au 
 T_jup = 3.471 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO454523  

212219 (2005 HC)          Discovered 2005-Apr-16 by Jarnac at Jarnac
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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